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i got error as busheavy in pcan view.please help me

ppate.16
Associate II

respected sir,

i am using SPC560B54L5 and i am testing can protocol in pcan view i got error busheavy status . i am also checking on oscilloscope only getting rx signal from transceiver. CAN interface connection0690X0000087jlSQAQ.pngis like from pcan to transceiver and transceiver to mcu please check attached pic & help me for fixing the problem thanks in advanced.

1 ACCEPTED SOLUTION

Accepted Solutions
Erwan YVIN
ST Employee

Hello ,

BUSHEAVY is maybe more than 128 Errors.

it could be a configuration issue (baudrate or something else ..)

It is better to use the debugger and to check why the bus is heavy.

You should check your driver

Best regards

Erwan

View solution in original post

3 REPLIES 3
Erwan YVIN
ST Employee

Hello ,

BUSHEAVY is maybe more than 128 Errors.

it could be a configuration issue (baudrate or something else ..)

It is better to use the debugger and to check why the bus is heavy.

You should check your driver

Best regards

Erwan

AvaTar
Lead

Check the cabling and termination.

I got similar issues with missing termination resistor.

i used 2 resistor of 100 ohms in series connection, is it ok ?